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Finding the Fourth Proportional to 112,592.80, 168,889.20 and 29,495.20

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Solution

The fourth proportional to 112,592.80, 168,889.20 and 29,495.20 is: 44,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,592.80 : 168,889.20 = 29,495.20 : x
  2. Step 2: Convert to fraction form
    112,592.80/168,889.20 = 29,495.20/x
  3. Step 3: Cross multiply
    112,592.80x = 168,889.20 × 29,495.20
  4. Step 4: Simplify right side
    112,592.80x = 4,981,420,731.84
  5. Step 5: Solve for x
    x = 4,981,420,731.84/112,592.80
  6. Step 6: Final answer
    x = 44,242.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.